1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mama L [17]
3 years ago
8

An electrician charges $40 per visit, and $20 per hour of work. On a particular day, he made 3 visits and calculated that his av

erage earnings were $50 per hour. Use this information to complete the statement. He worked hours that day.
Mathematics
1 answer:
saw5 [17]3 years ago
3 0

Answer:

  4 hours

Step-by-step explanation:

For three visits, the electrician earned $40 × 3 = $120 in "per-visit" charges. For working x hours, he earned 20x in "per-hour" charges. The total of these came to 50x:

  120 +20x = 50x

  120 = 30x . . . . . . . . subtract 20x

  4 = x . . . . . . . . . . . . . divide by 30

The electrician worked 4 hours that day.

You might be interested in
Given k(x)=4x+5, if k(x)=-3 find x
zvonat [6]

Answer:

x=-5/7

Step-by-step explanation:

4 0
3 years ago
How to add elementary fractions step by step
kobusy [5.1K]
1/2+4/10 for example
in a decimal way: 1/2+4/10 = 0.5+0.4. add those two and it is 0.9
in a fraction: 1/2+4/10 = 5/10+4/10. add the numerators, which is 9, and you keep the denominator so it is 9/10
3 0
4 years ago
Andre and Diego were each trying to solve 2x+6=3x-8 Describe the first step they each make to the equation
avanturin [10]
The first step was the combine the like terms; in this example he is subtracting the 3x on both sides of the =.

If you were to solve the equation it would look like this:

2x+6=3x-8
-3x -3x

-x+6=-8
-6 -6

-x=-14
/-1 /-1

x=14
6 0
3 years ago
Help please quick 100 points quick tell me what to write please if you now how to do this
marin [14]

Answer:

8 footballs

18 basketballs

36 baseballs

24 softballs

Step-by-step explanation:

Let f = footballs

f = 8

Let b = basketballs

b = 2+2f = 2 +2(8) = 2 +16 = 18

Let B = baseballs

B = 5f -4 = 5(8) -4 = 40-4 = 36

Let s = softballs

s = 6+1/2B = 6+1/2(36) = 6+18 = 24

The total is 86

f+b+B +s = 86

8+18+36+24 = 86

86=86

5 0
3 years ago
Read 2 more answers
Identify the set of numbers that makes up the domain in the relation {(-2, -2), (0, 2), (2, 4), (3, -6)}.
GREYUIT [131]
It’s A because it’s just asking for the domain (x)
7 0
3 years ago
Read 2 more answers
Other questions:
  • The graph of f(x)=cos(x) is transformed to a new function, g(x) , by reflecting it over the x-axis and shifting it 2 units down.
    11·1 answer
  • 1 5/6 changes into improper fraction
    5·2 answers
  • Write a fraction that is less than 5/6 and has a denominator of 8
    13·2 answers
  • Answer 21 and 22 please
    15·1 answer
  • 9.31 x 10 to the 3rd power equals what times 10 to the 5th power
    7·2 answers
  • Jimmy wants to buy socks that cost $20 how much change does he receive if he gives the cashier $100?
    6·1 answer
  • Jeff wants to know how many miles it is from his house to school. On a map the distance is 3 inches. If the scale is 1/2 inch fo
    6·1 answer
  • PLZZZ HELP MEEEE
    10·2 answers
  • Am I doing this equation right
    12·1 answer
  • Let x, y, and z represent three rational numbers, such that y is 512 times x and z is 50.25 more than x. If y=15.5, what is the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!